期刊
DALTON TRANSACTIONS
卷 51, 期 1, 页码 250-256出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1dt03760a
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资金
- Natural Science Foundation of China [U1608224, 21171118]
- Distinguished Professor Project of Liaoning province
- Liao Ning Revitalization Talents Program [XLYC1907047]
- Liaoning Science and Technology Project Management [2019-BS-192, 2021-BS-185]
- Basic Research Project of Educational Department of Liaoning Province [LQ2020005, LQ2020004]
Three novel metal-organic frameworks were synthesized as highly efficient fluorescence sensors for detecting DPA with high selectivity and sensitivity. MOFs 1-3 showed rapid responses to DPA, enabling real-time detection, with high reliability in detection in fetal bovine serum.
Dipicolinic acid (DPA) is an anthrax biomarker. Its serious consequences make its detection a great need. In this paper, three novel metal-organic frameworks (MOFs) with different coordination modes were synthesized by a simple solvothermal method, which can be used as highly efficient fluorescence sensors for the highly selective and sensitive trace detection of DPA. MOFs 1-3 showed rapid responses to DPA (<30 s), and the limits of detection (LODs) were calculated to be 1.01 x 10(-6) M-1 (MOF 1), 1.17 x 10(-6) M-1 (MOF 2) and 2.07 x 10(-6) M-1 (MOF 3). DPA detection based on MOFs 1-3 in fetal bovine serum is highly reliable based on the high recovery rates (90% to 115%). Hence, the three MOF-based sensors can be used in the real-time detection of DPA.
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